The mavic crossmax st d6t 650b wheel will enable you to power up and speed down mountains all day long offering you a perfect balance of features to increase power transfer while keeping weight to a minimum the 24 spoke front wheel gives you great braking stability while the 20 spoke rear wheel is perfect for optimizing power transfer the inter spoke milling ism gives you a light and rigid rim without affecting the durability this mavic mtb wheel is tubeless ready with the ust concept impro